Raising the full supply level of Darwin River Dam
Raising the full supply level of Darwin River Dam - The full supply level of Darwin River Dam has been increased by 20 per cent with the raising of the dam spillway. This work increased the capacity of the reservoir, which supplies Darwin, Palmerston and surrounding rural areas. The project was completed in 2011 with works on the intake tower.
Darwin River Dam is Darwin's primary potable water source, supplying about 90 per cent of the water for Darwin, Palmerston and surrounds.
Increasing the reservoir's capacity was a two-year project to reinforce the embankment and raise the spillway by 1.3 metres.
This increases the capacity by about 20 per cent, providing additional supply for the growing population.
The pump station and other infrastructure downstream have the capacity to support the additional supply, so raising the spillway at Darwin River Dam was a cost-effective way to meet the increasing demand.
For more information, refer to the frequently asked questions.